←back to thread

Testing DVD-R and CD-R 25 years later: optical disks from Japan

(goughlui.com)
176 points csdvrx | 3 comments | 01 Apr 25 21:46 UTC | HN request time: 0.572s | source
Show context
quantadev ◴[02 Apr 25 00:57 UTC] No.43552780[source]▶
IMO the only way to perfectly protect yourself against Ransomware Attacks is with CD-Rs, because it's something not even hardware can alter. A skilled take over of the root level of a machine can be encrypting everything and you'd never know it, until the day it denies your access, by deleting an encryption key until you pay up to get it back...you hope.
replies(6): >>43552844 #>>43552932 #>>43553040 #>>43553071 #>>43553804 #>>43554384 #
1. Dwedit ◴[02 Apr 25 07:20 UTC] No.43554384[source]▶
Can a CD-R drive force a second pass burning over existing data to make the disc unusable? Perhaps with drive firmware modification.
replies(2): >>43554462 #>>43554939 #
2. rasz ◴[02 Apr 25 07:38 UTC] No.43554462[source]▶
Afaik you can "erase" contents of a disk with open session. Data is still there just invisible without specialized tools, enough to fool non nerds.
3. dist-epoch ◴[02 Apr 25 09:17 UTC] No.43554939[source]▶
It would be safer to use a read-only drive when reading back the backups.